mirror of
https://codeberg.org/ziglang/zig.git
synced 2025-12-06 13:54:21 +00:00
156ab87500
See: * https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319 * https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701 We're dropping support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case. As a result of the second change, I had to bring in a subset of the headers from llvm-libc since libc++ now depends on these. Hopefully we can continue to get away with not copying the entirety of llvm-libc.
44 lines
1.4 KiB
C++
Vendored
44 lines
1.4 KiB
C++
Vendored
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP___MATH_COPYSIGN_H
|
|
#define _LIBCPP___MATH_COPYSIGN_H
|
|
|
|
#include <__config>
|
|
#include <__type_traits/enable_if.h>
|
|
#include <__type_traits/is_arithmetic.h>
|
|
#include <__type_traits/promote.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
namespace __math {
|
|
|
|
// copysign
|
|
|
|
[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI float copysign(float __x, float __y) _NOEXCEPT {
|
|
return ::__builtin_copysignf(__x, __y);
|
|
}
|
|
|
|
[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI long double copysign(long double __x, long double __y) _NOEXCEPT {
|
|
return ::__builtin_copysignl(__x, __y);
|
|
}
|
|
|
|
template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
|
|
[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type copysign(_A1 __x, _A2 __y) _NOEXCEPT {
|
|
return ::__builtin_copysign(__x, __y);
|
|
}
|
|
|
|
} // namespace __math
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP___MATH_COPYSIGN_H
|